Originally posted by BILLY SPIER
WHAT ELSE CAN BE USED TO LUBRICATE THE VALVES? I HAVE ONE THAT STICKS IN THE BLACK WATER TANK.
i used silicone grease applied directly to the seal and gate when i had my valve out to repair a leak.
works well, it slides very easy now.
the only drawback is that you must have the valve out of the trailer to do this.
and as femuse pointed out, you might as well get a new one at that point.
the cost of tossing some cocconut oil in the tank is minimal, what the heck, give it a try. maybe it would work.